Roofing.



T. R. HAOKWORTH.

ROOFING.

APPLIUATION FILED DEC.28,1911. 1,052,245.

RENEWED AUG. 24,1912.

Patented Feb. 4, 1913.

Witnesses Inventor,

Attorneys.

THGMAS REED HAGEWGETH, F BIGHAED CITY, TENNESSEE.

aoorms.

S pe ciflcation of Letters Patent.

Patented Feb. 4., 1913.

Application filed December 28, 1911, Serial No. 668,320. Renewed August24, 1812. Serial No. 716,880.

To all whom it My concern Be it known that I, THoMAs R. HACK- woi'rrrr,a citizen of the United States, residing at Richard City, in the countyof Marion and State of Tennessee, have invented a new and usefulRoofing, of which the following is a specification.

The present invention aims to provide a roof covering of novel andimproved form, the covering consisting of a series of tiles formed inplace upon the roof, means being provided for holding the tiles upon theroof, which means constitutes a part of the molding structure in whichthe tiles are fashioned.

A further object of the invention is to provide a means for yielding'lyseparating superposed layers of tiles in a roof, the said meansconsisting of a sheet of flexible mate rial. preferably water-proof, oneend of the sheet being interposed between the overlapping ends ofsuccessive layers of tiles. the other end of the sheet overlapping theexposed ends of one layer of tiles, the construction being such that thelast named end of the sheet of material constitutes a temporary coveringfor the tiles, which covering may be severed, after the tiles are inplace.

With the foregoing'and other objects in view, which will appear as thedescription proceeds, the invention resides in the combination andarrangement-of'parts and in the details of construction hereinafterdescribed and claimed. it being understood that changes in the preciseembodiment of invention herein disclosed can be made within the scope ofwhat is claimed without departing from the spirit of the invention.

In the accompanving drawing,Figure 1 shows in top plan. a roofconstructed in accordance with the present invention, parts being brokenaway; Fig. 2 is a section upon the line 2 -2 of Fig. 1; Fig. 3 is aperspective showing the primary and secondary bars and the separatingplates; Fig. 4 is a perspective showing a 'modified form of separatingplate; and Fig. 5 is a perspective showing a modified form of secondarybar.

In the accompanying drawings, the numeral 1 indicates the foundationwhich, ordinarily, is fashioned from the boards ofthe roof. in anglemember 2 extends along the side edges of the roof. and another anglemember 3 extends along the caves. The

flanges 4 of the angle members .2 and 3 are 1' attached to thefoundation 1, the flanges 5 of the angle members 2 and 3 upstanding, toretain in place upon the roof, the covering structure hereinafterdescribed.

Secured to the foundation 1, and preferably in parallel relation, anddisposed ordinarily at right angles to the direction in which the roofslants, are a series of primary bars 6. The separating plates 7 are provided, the same being, as shown in Fig. 3, of tapered form. The narrowerends of the separating plates 7 are disposed in abutment with one of theprimary bars 6, the wider ends of the separating plates 7 protrudingbeyond the next adjoining primary bar. The secondary bars 12 alternatewith the primary bars 6, the bars 12 and 6 bein preferably disposed'inparallel relation. ach of the secondary bars 12 connects one set ofseparating plates 7. the bars resting upon the upper edges of the nextadjoining set of separating plates 7 If desired, the separating plates 7may be connected with the foundation 1 by means of securing elements 22.The wider ends of the separating plates 7 protrude beyond that secondarybar 12 whereby they are upheld, and interlocking elements are provided,for holding the separating plates 7 assembled with the secondary bar 12.These interlocking elements may consist of notches 14 in the lower edgesof the wider ends of the separating plates 7, which notches 14 areadapted to interlock with notches 15,, formed in the upper edges of thesecondary bars 12. The plastic material, preferably concrete or thelike, denoted by the numeral 8, is interposed in the rectangles formedby the bars 6 and 12, and

by the separating plates 7 Noting particularly Fig. 2, it will beobserved that each layer of plastic material 8, overlaps the next layer9 below it, in the common and well known manner. Interposed betweensuccessive layers of plastic material is a layer of vieldable, waterroofmaterial, which may be heavy paper,- flilt or the like, denotedspecifically by the numeral 9. One end 10 of the layer 9 lies betweensuccessive layers 8 of plastic material, the other end 11 of each layerof flexible material protruding beyond one layer of plastic material andoverhanging the next layer of plastic material, to serve as a coveringtherefor. After the plastic material 8 has set sutiiciently, its end 11may be cut oil or severed otherwise The tiles which are formed by theplastic material, between the elements 12, 7 and 6, may be retained uponthe foundation 1, by means of securing elements 21.. preferably spikesor the like. entering the foundation 1.

If desired, the secondary bars and the separating plates may befashioned from metal. Under such circumstances, the secondary bars,denoted specifically by the numeral 16, may be equipped with key-holeslots 18. The separating plates are denoted by the numeral 17, and eachseparating plate terminates in 'a head 19, adapted to pass through theconstricted portions of the slots 18, heads 19 being connected with thebody portions of the plates 17, by reduced necks 90, adapted to rotatein the enlarged portion of the key-hole slot 18. The heads 19 may beinserted through the restricted portion of the slot 18, whereupon, ifthe late 17 be rotated, until the head 19 stans at right angles to theconstricted portions of the slots 18. an effective lock will he formed,holding the separating plates 17 interengaged with the secondary bars15. I

The primary bars 6 represent the thickness of the thinner ends of thetiles which are formed between the elements 7.. 16 and 12. The widerends of separating plates 7 represent the extreme thickness ofthethicker ends of the tiles.

Owing to the fact that the layer 9 of yieldable, water-proof material isem loyed, one layer of tiles will be prevente from cohering with thenext layer of tiles, to form a monolithic structure. Owing to thewater-proof nature of the material 9. the moisture will not be absorbedout of th tiles, it, of course, being understood that th e tiles areformed upon the roof, in plastic condition. The layer 9 of yieldablematerial constitutes a cushion between successive series of tiles. sothat if the tiles are trodden upon, or strained, due to wind-stress, abreaking of the roof covering will be avoided.

It is to be noted that the separating plates 7 of one series, breakjoints with the se a- .rating plates of the next series, and t asleakage bet-ween adjoining tiles is reduced to a minimum. The layer 9.of water-proof material covers the entire space between the bars 6 and12, and by this means, leakage is further prevented.

That end 11.01? the layer 9 which protrudes beyond the bar 12, overhangsthe exposed portions of the tiles, and serves to protect the tiles. fromthe sun, during the time that the'concrete is setting. The moisture isthereby retained in the tiles. and the tiles are prevented from injury,arising from any other source. This protruding end 11 may be cut away,after the'tiles have acquired a suflicient set.

It will be understood readily that the angle members 2 and 3 serve todefine the margin of-roof covering, as clearly shown in Fig.1.

Having thus described the invention, what is claimed is 1. A roofcomprisin a foundation; primary bars a plied to t e foundation; separateseries 0 separating plates, the plates of each series abutting againstone primary bar and extending across the next primary bar; separate setsof secondary bars alternating with the primary bars, the'secondary barsof each set connecting the plates of one series'and restin upon theplates of'the next series; and over apped layers of plastic materialinterposed between the bars and the plates.

2. A roof comprisin a foundation; primary bars applied to t efoundation; separate series of separate plates, the plates of eachseries abutting against one primary bar and extending across the nextprimary bar; separate sets of secondary bars alternating with theprimary bars, the second ary bars of each set connecting the plates ofone series and resting upon the plates of the next series; andoverlapped layers of plastic material interposed between the bars andthe plates, the secondary bars being of greater height than the primarybars, and the separating plates being tapered, the narrower ends of theseparating lates being disposed adjacent the primary ars, and the widerends of the separating lates being disposed adjacent the secondary ars.

3. A roof comprising a foundation; primary bars applied to thefoundation; separate series of separating plates, the plates of eachseries abutting against one primary bar and extending across the nextprimary bar; separate sets of secondary bars alternating with theprimary bars, the secondary bars of each set connecting the plates ofone series and resting upon the-plates of the next series; andoverlapped layers of plastic material interposed between the bars andthe plates; the secondary bars being of greater height than the primarybars, the se arat ng plates beingof ta red form, an having theirnarrower on s disposed adjacent the primary bars, the wider ends of theseparatmg plates extending beyond the secondary bars, the plates and thesecondary bars being equipped with interlocking elements.

4. A roof comprising a foundation; primary bar's applied to thefoundation; separate series of separate plates, the plates of eachseries abutting against one pr mary bar and extending across the nextprimary bar; separate sets of secondary bars alternating with theprimary bars, the secondary bars of each set connecting the plates ofone series and resting upon the plates of the next series; andoverlapped layers of plastic material interposed between the bars andthe plates; and

messes the plates; and a layer of yieldable, waterproof materialinterposed between the layers of plastic material.

5. A roof comprising a foundation; primary bars applied to thefoundation; separate series of separating plates, the plates of eachseries abutting against one primary bar and extending across the nextprimary bar; separate sets of secondary bars alterhating with theprimary bars, the secondary bars of each set connecting the plates ofone series and resting upon the plates of the next series; andoverlapped layers of plastic material interposed between the bars and alayer of yieldable, waterproof material interposed between the layers ofplastic material, the layer of Water-proof n'iaterial having a separableend overlapping the exposed portion vofone layer of plastic material,and constituting a temporary covering therefor.

3i root comprising a foundation; primary bars applied to the foundation;separate series of separating plates, the plates of each series abuttingagainst one primary bar and extending across the next primary bar;separate sets of secondary bars alterni-iting with the primary bars, thesecondary bars of each set connecting the plates of one series andrestine upon the plates of the next series; and overlapped layers ofplastic material interposed between the bars and the plates; thesecondary bars being of greater height than the primary bars, and theseparating plates being ot tapered form, the v narrower ends of theseparating plates being disposed adjacent the primary bars, and thewider ends of the separating plates extending beyond the secondary bars,the plates and the secondary bars being provided with interlockingelements; and :1 layer of yieldable,water-proof material interposedbetween the layers of plastic material, the layer of yieldable materialhaving a severable end overhanging the exposed portion of one layer ofplastic material, and constituting a removable covering therefor.

7. A roof comprising a foundation; angle members applied around theperiphery of the foundation; spaced primary and secondary barsoverlapping one flange of the angle members; separating plates abuttingagainst the primary bars and overhanging the secondary bars, there beinginterengaging elements upon the secondary bars and the plates; means forsecuring the separating plates to the foundation, to hold the separatingplates and the secondary bar against movement; the other flanges 01? theangle members constituting means for preventing the primary bars frommoving longitudinally; and a plastic material interposed between thebars and the plates.

In testimony that I claim the foregoing as my own, I have hereto ailixedmy signature in the presence of two Witnesses.

THQMAS REED HACK'WORTH.

Witnesses H. S. JENKINS, F. A. Kmmr.

